Daniel:

I'm afraid I haven't been able to pin this error down, except that it is definitely related to PhDbase. We don't use "private data sessions". In fact, this application is a legacy that was originally written in FoxPro/DOS. It has not been rewritten, just re-compiled. Also, the tables are in 2.x format. I wonder if that might have something to do with it. Hmmmm...

Thanks.

-jd